I have used Joomla and Mobile joomla for mobile templates for a few years now, with one issue, slow loading, and high disc use. A typical Joomla install with Mobile Joomla is about 100mb, without any fancy extensions and that is a small site.
I am looking for a web solution that requires little disc space, will work with pc and mobile and loads quickly.
A dream maybe?
Any suggestions? :squi:

A webhost with high config processors, 16+ GB RAM & SAS drives is something you need to look for. See to it that the servers are located in Tier 4 DC's. Servers with such infrastructure should suffice your needs.